Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253851 | Method of completing a well | Philip H. Winterfeld | 2001-07-03 |
| 5269375 | Method of gravel packing a well | — | 1993-12-14 |
| 5127474 | Method and means for stabilizing gravel packs | Brian A. Butler | 1992-07-07 |
| 5062484 | Method of gravel packing a subterranean well | David O. Falk | 1991-11-05 |
| 4932474 | Staged screen assembly for gravel packing | Bradley D. Hutchison | 1990-06-12 |
| 4614623 | Sulfonation of crude oils with gaseous SO.sub.3 to produce petroleum sulfonates | Mark A. Plummer, Carle C. Zimmerman, Jr. | 1986-09-30 |
| 4560517 | Sulfonation of crude oils with gaseous SO.sub.3 to produce petroleum sulfonates | Mark A. Plummer, Carle C. Zimmerman, Jr. | 1985-12-24 |
| 4510397 | Polymer flow control apparatus | — | 1985-04-09 |
| 4464509 | Apparatus and method for preparing polymers | — | 1984-08-07 |
| 4345409 | Brace member and wall structure | Thomas Temperly | 1982-08-24 |